Distributing-head.



E. O. SCHWEITZER.

DISTRIBUTING HEAD.. APPLICATION FILED APR. 5| 1913.

1 1 77,8 1 9. Patented Apr. 4, 1916.

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1 7km/waa E. '0. SCHWEITZER.

DSTRIBUTNG HEAD.

APPLICATION FILED APR.5| 1913.

1 177,81 9. Patented Apr. 4, 1916.

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E. 0. SCHWEITZER.

DISTRIBUTING HEAD.

APPLICATION FILED APR. 5, 1913*.

1 1 77 ,8 1 9. Patented Apr. 4, 1916.

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WQ/7%@ 0 Joh/Maz@ EZZof/zey UNITED sTATEs PATENT oEEIcE.

EDMUND O. SCHWEITZER, OF CHICAGO, ILLINOIS.

DISTRIBUTING-HEAD.

To all whom/t may concern:

Be it known that I, EDMUND O. ScHwErrzER, a citizen of the United States, residing at Chicago, in the county o f Cook and State of Illinois, have invented a certain new and useful Improvement in Distributing-Heads, of whichV the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to an improved transformer and pole construction, such that the transformer used in connection with the pole is containedinside of the pole and, further, that the distributing block for terminating outgoing lines is located below the 'connections employed for securing the lines to the pole, as a result of which the connections may be readily made without the necessity of working through the lines and above them.

In carrying out my invention, I employ a pole having a hollow base forming a receptacle for the transformer, said receptacle being continuous except at its top so as to contain oil to surround the transformer, for cooling and insulating purposes.

I do not claim broadly the construction of the transformer receptacle in the base of the pole, nor the combination of the transformer and pole having said receptacle, in the present application, as this constitutes the subiect-matter of one of my copending applications which has resulted in Patent No. 1,162,657, issued November 30, 1915.

My present invention relates to the improved arrangement of the connections employed for supporting the lines terminating at the pole so that these lines may be connected or changed as desired, without the necessity for getting above the lines to do this work. As a result, the entire circumference of the distributing ring is available for supporting lines connecting with and extending from the distributing block carried by the upper end of the pole. y

In addition to the construction already referred to, my present invention provides a means for supporting a high tension sup-- ply cable by means of the distributing ring at the top ofthe pole, from which cable a tap is brought down inside of the pole t0 supply the necessary current to the primary windings of the transformer contained with- Speccartion of Letters Patent.

Patented Apr. 4, 1916.

Application led April 5, 1913. Serial'No. 759,206.

in the lower part of the pole. It will be understood'that the high tension current may be supplled to the transformer either from an overhead supply cable, as referred to, or, if preferred, the supply cable may be run 1n underground conduit and lead into the transformer receptacle through the bottom of the pole.

B y my invention, I also provide a protectmg shield and cover for entirely surrounding and inclosing the supporting devices and distributing block and connections carrled thereby, at the top ofthe pole, so that these parts are thoroughly protected from rain and snow.

The. several drawings illustrating my invention are as follows:

Figure 1. shows in elevation one of my improved transformer pole units complete. Fig. 2 shows in vertical central section the pole construction indicated in Fig; 1. Fig.

3 shows in elevation an enlarged view of y the supply cable is overhead instead of under ground, as shown in Fig. 2. Fig. 7 shows in top view the parts seen in Fig. 6 with the protecting shield and co'ver ree moved. Fig. 8 is a bottom view of the dis-` tributing block shown in Fig. 6 and indicates the construction of said block to facilitate the passage of a supply tap from the overhead high tension cable to the primary windings of the transformer.

Similar numerals refer to similar parts throughout the several views. v

As shown in Figs. 1 and 2, the transformerpole consists of a plurality7 of sections of iron or steel pipe 1, 2, 3 and 4t, these sections being of decreasing diameter from the base upward. The sections 1 and 2 are secured together by a reducing coupling 5, formed preferably from cast iron or similar material, and the joints between the other sections are protected bv collars 6 and 7 which serve to ornament the pole and to also reinforce the connections between the corresponding sections thereof.

rlhe lower end of the section 1 is secured by means of a collar 8 to a section 9 formed ofA iron or steel pipe of diameter smaller than the section 1, this section 9 serving to support the pole by its engagement with the earth, into which it extends a suflicient distance to accomplish this purpose. The lower end of the section 1 immediately above the collar S is provided with a bottom 10, which is a tight lit in the pipe 1, so that it makes of the lower portion of said pipe a receptacle for containing oil 11 employed to insulate the transformer 12 containedin said receptacle. `When the current is supplied to the transformer 12 from an underground high tension cable, as shown at 13, a tap 14 is led up through the receptacle in the section 1 by means of a pipe 15 tightly secured at its lower end into the bottom 10. The tap 14 immediately above the pipe 15 is provided with a pothead connection 16 from which the conductors 17, free from their outer sheath, are led with greater facility to the terminals of the cut-out 18 supported in the upper portion of the section 1 of the pipe. Conductors 19 eXtend from the cutout 18 to the primary terminals of the transformer 12, these connections being made under the surface of the oil 11. The secondary or low tension terminals of the transformer 12 are connected by means of conductors 20 extending upward through the inside of the transformer pole, with the Supply connections of the distributing block as follows:

The distributing block 22, which may consist of any suitable insulating material as impregnated wood, porcelain, etc., has formed vertically therein at three corners bores for receiving studs 21 which extend below the lower end of the block 22 and are threaded to receive binding nuts 23. By means of these binding nuts, the conductors 20 are secured to the lower ends of the studs 21. If the electric energy is to be distributed from the pole by means of a three-wire system, there are three conductors 20y connected with three of the studs 21 and, if the distribution is to be effected by means of a two-wire system, there are but two conductors 20 connected to two of the studs 21. The distributing block 22, it will at once be understood, may readily be constructed to accommodate any system of distribution desired.

The distributing j block 22 is provided with a plurality of sets of outgoing terminals 24, 25, and 26, each set consisting of four studs in substantially the same horizontal plane projecting from the block 22 and provided with a pair of clamping nuts, as indicated. The studs 26 are connected together by a metal connecting strip 27, which is preferably of copper, which strip is bent into the groove 27a formed in the distributing block 22 so that it is in good electrical connection with one of the studs 21 by which connection is made between all of the studs 26 and the corresponding conductor 20. By a similar arrangement, the studs 25 are connected to another one of the conductors 20 and the studs 24 to the remaining one of the conductors 20, assuming that a three-wire distribution system is employed. As a result of the construction described, four sets of connections are' available for outgoing three-wire distrib-ution lines, each set consisting of one of the studs 24, 25 and 26. The distributing block per se forms the subject matter of my copending application, Serial No. 63,603, which is a division of my application which has resulted in the patent before mentioned. A distributing ring 28 is supported from the upper end of the section 4 of the transformer pole by means of bent arms 29 in such position that said ring is above the upper end of the distributing block 22. rllhe distributing block 22 is squared where it supports the studs 24, 25

and 26 and its lower end is of cylindricall conformation to engage and be supported by the upper end of the section 4 of the transformer pole. rl`he arms 29 are rigidly securedat their upper ends to the ring 28 and at their lower ends to the upper end of the section 4 of the transformer pole by any suitable devices, preferably rivets, as indicated in Fig. 3. y Electric cables are readily supported from the distributing ring 28 by means of clamp blocks 30 provided with two clamp bolts 31 extended at their upper ends and vformed intosupporting hooks 32.

In order to support a. cable from the distributing ring 28, it is laid between the clamp blocks 30 with the clamp bolts in releasing position and the clamp blocks are adjusted on the cable until they occupy the desired position thereon with the hooks 32 in engagement with the distributing ring 28 to support the cable therefrom.- The clamp bolts 31 are then tightened so as to securely hold the cable ,in the desired position. This device thus constitutes a means for readily securing the end of an electric cable to the distributingring andv supporting the same therefrom so that the conductors extending from said cable may be connected in a manner well-known in the art to the desired ones of the studs 24, 25 and 26. Since the distributing ring 28 is above the studs 24, 25, and 26, it will at once be seen that the necessary manipulation of the cable and the preparing and connecting of its conductors to the desired terminals may be effected wholly from below the distributing ring, which is a greatadvantage when there are many distributing lines leading from the distributing ring. When the desired connections have been made between. the distributing lines and the distributing block, a shield 33, which was slipped on the section 4 before mounting the distributing ring 28 thereon, is slid up into position against the under side of the cable clamps, in which osition it is held by screws 34, as indicated 1n Fig. l, which are threaded preferably into the outer heads of the rivets supporting the lower ends of the arms 29 from the upper end of the section 4 of the transformer pole. The shield 33 lis preferably made of sheet metal and, after it is put in the position indicated, the connections and distributingl ring and block are further protected by means of a cover 34 provided around its lower edge with notches to pass over the distributing lines, which cover, by resting over and around the distributing ring, protects all of the parts mounted` upon the upper end of the transformer pole. The upper section 4 of the transformer pole is preferably incased in a tube of insulating material 35, which may be of bituminized fiber, or other insulating material.

The receptacle in the section 1 containing the transformer 12 is provided with a removable cover 36 and between this cover and the cut-out 18 there is provided a door 37 for permitting access to the cut-out 18 and the transformer receptacle. The door 27 may be provided with a suitable lock 38, if desired. The door 37 is also provided with outside ianges 39 and 40 by means of which it may be securely screwed to the body portion of the section 1 ofthe pole and thus make asecure waterproof joint with said section. The portion of the transformer receptacle above the cover 37 is preferably lined with insulating material 41, as, for example, bituminized fiber, and the cut-out 18 is provided with a plug or plugs 42 for removing the fuses carried thereby and forming a part of said cutout in a manner well-known in the art, so

that, although the cut-out is in the primary circuit, it may be operated by the insulating plug or plugs 42 without any danger to the operator. By removing this plug or plugs, the transformer is entirely cut out of circuit as well as all of the distributing lines so that the transformer may be repaired or replaced and the connections on the` distributing block rearranged, or other lines connected thereto, as desired.

As shown in Figs. 6 and 7, the supply or primary cable 43 may be overhead and supported at the transformer pole by means of the distributing ring 28, by means of clamp bars 30, as described for the distribution lines in connection with Fig. 4. With this arrangement, a tap connection 44 is made with the supply cable, said tap connecticn or cable extending downward at oneside of the' distributing block 22 and through the lower cylindrical portion of said block into the inside of the transformer pole, through which it extends downward to the cut-out 18 to supply current to the transformer 12 in the manner above described. The connection of the distribution lines are made as before. The distributing block 22 is provided, in this arrangement, with a groove 22a through its lower cylindrical portion to permit the passage of the tap cable .44 therethrough, as indicated in Fig. 6.

The devices above described are particularly adapted. for handling lead covered cable, in connection with which the clamping devices referred to are preferably made of iron or steel. The same arrangement of parts may be employed, however, for other kinds of cable 0r for other kinds of insulated electrical conductors and, if preferred, the clamping vbars 30 may be formed of insulating material, as porcelain, or may engage and support insulators surrounding the conductors instead of directly engaging the insulation of said conductors.

That I claim is: I

1. In a distributing head for a transformer pole, the combination of a distributing Iblock supported by the upper end of the pole, a distributing ring supported by the upper end of the pole above the connectors on the distributing block, conductor clamps, hook bolts for securing the clamps to the conductors and supporting them from the distributing ring, a shield for surrounding the upper end of the pole and the lower portion of the distributing block, and a cover for inclosing the upper end of the distributing block and surrounding the upper end o-f said shield.

2. In a 'distributing head for a transformer pole, the combination of a distributing block carried by the upper end of the pole, a distributing ring carried by the pole above the connectors of the distributing block, devices for supporting conductors from the distributing ring, and a protecting shield and cover for surrounding and inclosing the distributing ring and distributing block.

3. In a distributing head for a transformer pole, the combination of a distributing ring, upwardly extending arms for supporting said ring above the upper end of the pole, clamps for engaging electric conductors, hook bolts for holding said clamps in place upon said conductors and supporting them from said distributing ring, a shield surrounding said arms and the upper end of said pole, and a cover surrounding said ring and the upper end of said shield.

4. In a distributing head for a transformer pole, the combination of a distributing ring, upwardly extending arms for supporting the ring above the upper end o-f the pole, and a shield and cover for inclosing und protectingthe upper end of the pole,

said arms, and said distributing ring.

5. In u distributing head for a transformer pole, the combination of a distributing block carried by the upper end of the pole, a distributing ring carried by ,the poie above the connectors of the distributing block, devices for supporting conductors from the distributing ring, and a protecting shield and cover for surrounding and inclosing the distributing ring and distributing block, said distributing block having a groove formed longitudinally in its lower portion to permit the passage therethrough of an electric cable.. 15

In Witness whereof, I hereunto subscribe my name this 1st day of April, A. D. 1913.

EDMUN D O. SCHWEITZER.

Witnesses:

ALBERT C. BELL, HERBERT A. FIFE. 

